There are total 18 hours or 1080 minutes from 7am to 1am. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 3AM to 8AM | 12AM to 2PM | 12PM to 4AM |
| 12AM to 5AM | 3PM to 7AM | 4AM to 12PM |
| 11AM to 5AM | 12PM to 8AM | 6PM to 1AM |
| 9AM to 7PM | 4AM to 6AM | 9AM to 1AM |
| 8PM to 5AM | 4PM to 12AM | 10AM to 8AM |
| 10AM to 4PM | 6AM to 9AM | 10PM to 2AM |
